Combined alarm-clock and lamp-regulating mechanism



(No Model.)

J; M. CRAWFORD.

COMBINED ALARM CLOCK AND LAM]? REGULATING MECHANISM.

No. 317,312. I Patented May 5, 1885.

WITNESSES:

n. PETERS. Pmro-L'nm hu. Washinglou. D c

llrirTnn STATES PATENT @rricn.

JOHN M. CRAWFORD, OF PHILADELPHIA, PENNSYLVANIA.

COMBINED ALARM-CLOCK AND LAMP-REGULATING MECHANISM.

EPECIFICATION forming part of Letters Patent No. 317,312, dated IvIay 5, 1885.

Application filed January 27, 1885.

To all whom it may concern:

Be it known that I, JOHN M. CRAWFORD, a citizen of the United States, residing at Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Combined Clocks and Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, which form part of this specification, in which- Figure 1 is a rear elevation, and Fig. 2 a side elevation, of combined clock and lamp.

My invention has relation to combined timepieces, clocks, and lamps in which the lamp serves to illuminate the clock-dial, and in which the clock-work operates to raise and lower the flame of the lamp at predetermined intervals, so as to give a full light at times and a low light or glimmer at intervals.

My improvement consists in the peculiar construction and combination of parts hereinafter fully set forth, having reference, principally, to the following features: to the combination, with a lamp and the works and case of a clock, of mechanism of the peculiar construction hereinafter specifically described and claimed, whereby motion is communicated from the clockwork to the rock-shaft on the lamp to raise and lower the flame-regulating tube.

Referring to the accompanying drawings, A designates a clock, the case of which is represented by the letter B, and the dial of which is at O.

D represents an oil or other lamp, which, to illuminate the clock-dial without obstructin g the view thereof, should be placed in front and to one side of the latter. Said lamp may be of the ordinary or any suitable construction in its general features. My improvements thereon comprise a tube, E, supported on arms f f rigidly secured to a rock-shaft, F, having its bearings on the under side of the balcony g of the lampburner G. The tube E surrounds the wick-tube H of the lamp and stands out sufficiently from the latter to leave a clear opening or draft-passage for air between the two tubes, so as to promote combustion and prevent smoking when the lampflame is low, and is adapted to be raised and (No model.)

] lowered by clock-work mechanism, as will be hereinafter described. The tube E normally stands with its upper edge in or about the same horizontal plane as the upper edge of the wick-tube H, and in this position does not impair or lessen the flame; but when raised, so as to bring its edge above the edge of the wick-tube, it lowers the flame. Its range of movement should be just sufficient to enable it, when raised to itsv maximum extent, to lower the lamp-flame to a mere glimmer, and when lowered to permit the flame to burn full.

To secure the necessary vertical movement for the tube E it is formed or provided with rigid pendants e c, which are pivotally connected at their lower ends to the upper or outer extremities of the rock-shaft arms ff, said pendants passing through openings formed in the perforated base of the burner for that purpose. By rocking or partially rotating the shaft F. the arms f f will move in the arc of a circle, and so communicate a vertical movement to the tube E. To connect this shaft F with the works of the clock its head f is provided with a rigid arm or bracket, 1, having adj usting-holest' v; for the reception of a pin, 70, on the end of a spring-plate,

K, which forms the medium of connection be-' tween the clock and the lamp. This plate, by reason of its elasticity, will maintain its connection without rigid fastening with the bracket I, and may be readily detached there from by a lateral spring movement or bendmg.

L represents a shaft supported in brackets or bearings Z Z, rigidly fastened to the clock. Said shaft has at one end an arm, M, fastened in place by a set-screw, m, and formed with adj usting-holes m,through one of which passes a screw, m that enters an opening for its reception in the adjacent end of the spring-plate or connecting-rod K, the latter being thus adjustable on the arm M to vary the throw of the former and the consequent movement of shaft F and tube E. The other end of the shaft L carries a rigidly-secured arm, N, which is connected by a pitman, P, with a lever, O, fulcrumed at 0 on the back of the clock. Said lever has a projecting shoulder, 0, with which the ends or wings q of radial arms g on the minute-hand arbor R of the clock come successively in contact, thereby communicating movement to said lever 0, and from it to shaft L, connecting-rod K, and shaft 13. These arms q, being shown in Letters Patent of the United States dated August 5, 1879, and July 17, 1883, Nos. 218,237 and 281,465, granted to me, are not herein of themselves specifically claimed. When the arm q depresses or tilts the lever 0, it produces a lowering of the tube E, and so allows the lamp-flame to burn full, and when the arm passes out of contact with the shoulder o, a weight, S, suspended on an arm or projection, O, of lever O, restores the lever to position, thereby elevating the tube E, and lowering the flame to aglimmer, in which condition it remains until another arm, q, again moves the lever 0. While the flame is burning full the clock-dial may be read, and if it be desired to have the flame remain full for a long time the result may be effected by means of a counter-shaft, T, sustained on the clock below the shaft L, said shaft T having a handle, t, at one end for manual operation and a projection or wing, t, at the other end,whieh wing, when said shaft is turned by means of its handle, impinges against a curved arm, Z projecting from shaft L, moving or rocking the latter in such a way as to lower the tube E, said wing it also, when resting in contact with arm Z operating as a stop to prevent reverse movement of said shaft L and tube E. Lever O has a second shoulder or offset, 0 against which a laterally-projecting finger, a, on an arm, U, rests. Said arm is fulcrumed on the arbor V, by which the alarm of the clock is set.

On the winding-arbor V of the alarm is a cross-head or key, w,o11e of the wings of which has a rigidly-attached projecting finger, which, when the alarm goes off or operates, comes in contact with the edge of arm U, causing the finger a to bear with force on the shoulders 0 of lever 0, thereby moving the latter so as to cause the tubeE to be lowered and the flame raised. The flame will now remain full until the alarm is rewound or said projecting finger w turned off the arm U.

To avoid jarring when the weight S descends and to limit its descent, the shaft L has a downwardly-depending arm, Y, with a bent end, y, and provided with a rubber collar, 1 made vertically adjustable by means of an adjusting-screw, y The arm 0, on which the weight S is suspended, strikes this collar on the descent of the weight. Said arm 0 has adjusting-holes 0 for varying the power of the weight.

It will be noted that though the flame is varied by the movement of the tube E the wick is not operated thereby, the raising and lowering of the latter being effected by the ordinary shaft with ratchet, or equivalent de- Vice.

What I claim as my invention is as follows:

1. The combination, with a shaft, F, on a lamp-burner, and a shaft, L, connected with the works of a clock so as to be moved there from, of a spring connecting-rod, K, substantially as shown and described.

2. The combination, with a clock, of a shaft, L, supported in bearings thereon, and a lever, 0, pivotally fastened on the back of the clock, said lever having a shoulder, o, in the path of rotation of the wings q, of radial arms g on the minute-hand arbor of the clock, and an arm, 0, carrying a weight, S, substantially as shown and described.

3. Thecombination, with rock-shaft L, supported on the clock and having depending arm Y with a rubber collar, y, of lever O, pivotally fastened on the backof the clock and having an arm, 0, carrying a weight, S, said arm being arranged, substantially as shown, to strike said collar when the weight descends, substantially as shown and described.

4. The combination, with lever O, pivoted on the back of a clock and having arm 0, carrying a weight, of a rock-shaft, L, moved by said lever and having depending arm Y, with adj usting-screw f for regulating the extent of descent of said weight, substantially as shown and described.

5. The combination, with rock-shaft L, supported in bearings on the clock and having a curved projecting arm, Z", of counter-shaft T, having handle and projecting wing or arm 15, arranged to impinge against the said arm Z substantially as shown and described.

6. The combination, with lever O, pivotally secured to the back of a clock and having a shoulder, 0 of arm U, fulcrumed on the setting-arbor of the alarm mechanism, said arm having a laterally-projecting finger, a, which rests upon said shoulder, and a cross-head or key, w, on the winding-arbor of the alarm, with wing 10, which bears against said arm when the alarm operates, substantially as shown and described.

7. The combination, with lamp D, of flameregulating tube E, shaft 1?, having arms f f, connecting-rod K, shaft L, having arms M and N, pitman I, lever 0, having shoulder 0, and arm 0, carrying weight S, and minute-hand arbor with radial arms q, having wings (1, said several parts being constructed and combined for operation substantially as shown and described.

8. The combination of a lamp having a vertically-adjustable tube exterior to the wicktube for raisingand lowering the flame, with a clock, and mechanism, substantially as de scribed, for moving said tube from and by said clock, whereby, through the movement of said flame-regulating tube, the lamp-flame is raised at intervals and intermittently lowered without moving the wick, as specified.

In testimony that I claim the foregoing I have hereunto set my hand this 21st day of January, 1885.

\Vitnesses: JOHN M. ORAXVFORD.

JOHN PEACOOK, MronAnL M. GEHEAN. 

